Show the formation of Na₂0 by the transfer of electrons between the combining atoms.

44 What is the electronic configuration of (i) a sodium atom, and (ii) an oxygen atom ? 44 What is the number of outermost electrons in (i) a sodium atom, and (ii) an oxygen atom? 44 Why are ionic compounds usually hard? 44 How is it that ionic compounds in the solid state do not conduct electricity but they do so when in molten state?’